Results 11 to 20 of about 378,163 (279)
Highlights of Astronomy, 1968 Ultraviolet astronomy is in a phase of very rapid development and any review of the new techniques involved is necessarily conditioned by the fact that most of the work is in a preparatory stage. This paper, therefore, will not be restricted to a discussion of those techniques which have undergone the ultimate test of their effectiveness, i.e., an ...
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Far and Extreme Ultraviolet Astronomy with ORFEUS [PDF]
International Astronomical Union Colloquium, 1990 AbstractORFEUS (Orbiting and Retrievable Far and Extreme Ultraviolet Spectrometer) is a 1 m normal incidence telescope for spectroscopic investigations of cosmic sources in the far and extreme ultraviolet spectral range. The instrument will be integrated into the freeflyer platform ASTRO-SPAS.
G. Krämer +14 more
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Hemispheric Ultraviolet Background Explorer [PDF]
, 2023 The "Explorador Hemisférico Del Espectro U/V" (HUBE) is a proposed joint Argentinean-American ultraviolet-astronomy earth-orbiting satellite to be launched early in the coming millennium (which is only a few years away!). In the exploration of the cosmos
Henry, Richard C.
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Frontiers in Astronomy and Space Sciences, 2018 This contribution to the Research Topic “Imagining the Future of Astronomy and Space Sciences” focuses on astrobiology and exoplanetary research. Understanding the origin of life is the main scientific challenge to this century and an interdisciplinary ...
Ana I. Gomez de Castro
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The Astrophysical Journal, 2023 The detection of gravitational waves from the binary neuron star merger GW170817 and electromagnetic counterparts GRB170817A and AT2017gfo kick-started the field of gravitational-wave multimessenger astronomy. The optically red to near-infrared emission (
Bas Dorsman +10 more
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Joe Pawsey and the Founding of Australian Radio Astronomy [PDF]
, 2023 This open access book is a biography of Joseph L. Pawsey. It examines not only his life but the birth and growth of the field of radio astronomy and the state of science itself in twentieth century Australia.
Ekers, Ronald D. +2 more
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Disk winds from T Tauri stars - physics and observables
Frontiers in Astronomy and Space SciencesMagnetically driven disk winds are fundamental to protoplanetary disk evolution, regulating angular momentum transport, stellar accretion, disk dispersal, and the environment in which planets form. Magnetohydrodynamic (MHD) models provide the theoretical
Ana I. Gómez de Castro +1 more
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The Astrophysical Journal, 2023 Nonequilibrium ionization (NEI) is essentially required for astrophysical plasma diagnostics once the plasma status departs from the assumption of ionization equilibrium.
Chengcai Shen +2 more
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An Ultraviolet Spectrophotometer for Satellite Astronomy [PDF]
Japanese Journal of Applied Physics, 1964 An astronomical Spectrophotometer is described which was designed for use on OSOB, the second U.S. Orbiting Solar Observatory. The Spectrophotometer is intended to analyze the ultraviolet emission from stars and nebulae. The entrance slit of the Spectrophotometer defines the field at the primary focus of a 6-inch modified Gregorian reflecting ...
Kenneth Hallam, John Mangus
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The Astrophysical Journal, 2023 Observations of low-ionization state metal lines provide crucial insights into the interstellar medium (ISM) of galaxies, yet, disentangling the physical processes responsible for the emerging line profiles is difficult.
Simon Gazagnes +21 more
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